Asymmetric mixed modular multilevel converter topology in bipolar HVDC transmission systems

Jae Jung Jung, Joon Hee Lee, Seung Ki Sul

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

In this paper, an asymmetric mixed MMC topology of multilevel converter for bipolar HVDC transmission systems is introduced. Among the existing MMC topologies for the bipolar HVDC systems, the asymmetric mixed MMC topology provides the benefits of: A lower number of submodule cells, fewer switching devices and lower conduction losses. Furthermore, the HVDC based on asymmetric mixed MMC can be flexibly operated at a reduced DC voltage, even zero DC voltage under DC line fault conditions. Also, the flexible DC voltage controllability in asymmetric mixed MMC permits a slow rampup along the DC line fault recovery characteristics. Finally, the full-scaled simulation results and the experimental results with a scaled version in laboratory are provided to support the validity of the asymmetric mixed MMC for bipolar HVDC system.

Original languageEnglish
Title of host publication2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1615-1621
Number of pages7
ISBN (Electronic)9781509029983
DOIs
StatePublished - 3 Nov 2017
Event9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017 - Cincinnati, United States
Duration: 1 Oct 20175 Oct 2017

Publication series

Name2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
Volume2017-January

Conference

Conference9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017
Country/TerritoryUnited States
CityCincinnati
Period1/10/175/10/17

Keywords

  • Asymmetric mixed modular multilevel converter(ASYM-MMC)
  • Bipolar HVDC transmission system
  • DC fault ridethrough
  • Hybrid arm MMC

Fingerprint

Dive into the research topics of 'Asymmetric mixed modular multilevel converter topology in bipolar HVDC transmission systems'. Together they form a unique fingerprint.

Cite this